eio_sendfile
(PECL eio >= 0.0.1dev)
eio_sendfile — Transfer data between file descriptors
Description
eio_sendfile( mixed $out_fd, mixed $in_fd, int $offset, int $length, int $pri = ?, callable $callback = ?, string $data = ? ): resource
eio_sendfile() copies data between one file descriptor and another. See SENDFILE(2)
man page for details.
Parameters
-
out_fd
-
Output stream, Socket resource, or file descriptor. Should be opened for writing.
-
in_fd
-
Input stream, Socket resource, or file descriptor. Should be opened for reading.
-
offset
-
Offset within the source file.
-
length
-
Number of bytes to copy.
-
pri
-
The request priority:
EIO_PRI_DEFAULT
,EIO_PRI_MIN
,EIO_PRI_MAX
, ornull
. Ifnull
passed,pri
internally is set toEIO_PRI_DEFAULT
. -
callback
-
callback
function is called when the request is done. It should match the following prototype:void callback(mixed $data, int $result[, resource $req]);
-
data
-
is custom data passed to the request.
-
result
-
request-specific result value; basically, the value returned by corresponding system call.
-
req
-
is optional request resource which can be used with functions like eio_get_last_error()
-
-
data
-
Arbitrary variable passed to
callback
.
Return Values
eio_sendfile() returns request resource on success, or false
on failure.
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Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.eio-sendfile.php